Skip to content
The Patent Garden

US Plant Patent PP15721

Pewter Lace

Athyrium plant named ‘Pewter Lace’

PUBLIC DOMAIN

Patent expired July 2, 2024. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on June 18, 2024. This patent earned 14 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP15721, the photograph of Pewter Lace printed in the patent.
Figure 1 from US Plant Patent PP15721, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number
PP15721
Filed
June 18, 2004
Granted
April 12, 2005
Expires
July 2, 2024
Inventor
HEIMS DANIEL M

Abstract

A new and distinct cultivar of Athyrium niponicum var. pictum plant characterized by the pewter tone to the leaves, silver over grey green, with a pink rachis. This coloring persists from new growth to mature.

Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.

1. A new and distinct Athyrium niponicum var. pictum plant substantially as shown and described, characterized by the pewter tone to the leaves, silver over grey green, with a pink rachis, said coloring persisting from new to mature growth.

Read the full patent: US Plant Patent PP15721 in full — the complete specification, every figure, and the file history.